I have 2 Serpae Tetras in my community tank and I have had them for a while now. All of my fish know when its feeding time and usually all eat at the same time, but my tetras won't. I obviously know they're eating because they're still alive, but I was wondering do they usually eat leftovers at the bottom?

My Gourami sort of dominates the top area when its feeding time but my Cherry's seem to eat fine.